UN: Don't Worry About Drinking Microplastics In Water

In this May 23 2019 file photo, Southern Connecticut State University professor Vincent Breslin holds a sample of water that contains possible microplastics at the North Haven Water Treatment Plant on Universal Drive. The World Health Organization says the levels of microplastics in drinking water donā€™t appear to be risky, but that more research is needed into their effects on the environment and health. A WHO report released Wednesday, Aug. 21, said the minuscule plastics are ubiquitous in the environment and have been found in both tap and bottled drinking water. (Bailey Wright/Record-Journal via AP)


BY JAMEY KEATON, MARIA CHENG

GENEVA (AP)
ā€” The World Health Organization says the levels of microplastics in drinking water donā€™t appear to be risky, but that research has been spotty and more is needed into their effects on the environment and health.

Microplastics are created when man-made materials break down into tiny particles smaller than about 5 millimeters (roughly one-fifth of an inch), although there is no strict scientific definition.

In a report published Wednesday, the U.N. health agency said the minuscule plastics are ā€œubiquitous in the environmentā€ and have been found in drinking water, including both tap and bottled, most likely as the result of treatment and distribution systems.

ā€œBut just because weā€™re ingesting them doesnā€™t mean we have a risk to human health,ā€ said Bruce Gordon, WHOā€™s coordinator of water, sanitation and hygiene. ā€œThe main conclusion is, I think, if you are a consumer drinking bottled water or tap water, you shouldnā€™t necessarily be concerned.ā€

Gordon acknowledged, however, that the available data is ā€œweakā€ and that more research is needed. He also urged broader efforts to reduce plastic pollution.

The report is WHOā€™s first review to investigate the potential human health risks of microplastics. It said people have inadvertently consumed microplastics and other particles in the environment for decades without sign of harm.

Andrew Mayes, a senior lecturer in chemistry at Britainā€™s University of East Anglia who didnā€™t participate in the WHO report, agreed that microplastics in water donā€™t appear to be a health worry for now.

ā€œBut I wouldnā€™t want people to go away with the idea that microplastics are no longer important,ā€ because they might be harming the environment, he said. He said stronger measures to reduce plastic are needed.

ā€œWe know that these types of materials cause stress to small organisms,ā€ he said. ā€œThey could be doing a lot of damage in unseen ways.ā€

ā€œEven if we stop (adding) plastic to the environment right now, microplastics will increase as larger pieces divide into smaller and smaller pieces,ā€ Mayes said, adding scientists have little understanding of the long-term consequences.

WHO called for further analysis of microplastics in the environment and their potential health significance.

Gordon said that although WHO would continue to monitor levels of microplastics in water, the higher priority is proven risks in drinking water like bacteria that cause typhoid and cholera.

ā€œThese are things that cause immediate illness and can kill a million people,ā€ he said.

Cheng reported from London.

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